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The IMO B10R2040-300 is a reliable Type AC Residual Current Device (RCD/RCCB) designed to protect single-phase electrical installations against earth leakage faults. Manufactured by IMO Precision Controls, it forms part of the trusted B10R RCCB series, providing dependable protection for industrial control panels, commercial installations and electrical distribution systems.
The device continuously monitors the current flowing through the live and neutral conductors. When an earth leakage current exceeds the rated residual operating current, the RCD disconnects the electrical supply, helping protect equipment and reducing the risk of electrical faults. Its 300 mA trip sensitivity makes it particularly suitable for fire protection and equipment protection applications rather than additional personal protection.
With a 40 A rated current, 300 mA residual operating current, 1 Pole + Neutral configuration and 230 V AC operation, the B10R2040-300 offers reliable earth leakage protection together with straightforward DIN rail installation.
Residual current devices compare the current flowing through the live conductor with the current returning through the neutral conductor. When an imbalance caused by an earth fault is detected, the device disconnects the electrical supply to help protect equipment and installations from damage caused by leakage currents.
The 300 mA sensitivity of the IMO B10R2040-300 is commonly selected for fire protection and equipment protection applications. The device should always be installed alongside suitable overcurrent protection because it does not provide overload or short-circuit protection.
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| Voltage | 230 V | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | RCD | |
| Residual Current | 300 mA | |
| RCD Type | Type AC | |
| Manufacturer | IMO Precision Controls | |
| Series | B10R | |
| Model | B10R2040-300 | |
| Alternative SKU | B10R2040300 | |
| Product type | Residual Current Device (RCD/RCCB) | |
| Rated current | 40 A | |
| Rated residual operating current | 300 mA | |
| Residual current type | Type AC | |
| Pole configuration | 1 Pole + Neutral (2 Pole) | |
| Rated voltage | 230 V AC | |
| Frequency | 50 / 60 Hz | |
| Conditional short-circuit rating | 10 kA | |
| Mounting type | DIN rail | |
| Protection rating | IP20 | |
| Standard | IEC 61008-1 | |
| Barcode | 5056207442780 | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
The B10R2040-300 provides earth leakage protection by disconnecting electrical circuits when residual current faults are detected.
The IMO B10R2040-300 has a rated operational current of 40 A.
This model has a 300 mA rated residual operating current, making it suitable for equipment and fire protection applications.
The device is a Type AC RCD designed to detect alternating sinusoidal residual currents.
No. The B10R2040-300 provides residual current protection only and should be installed with a suitably rated circuit breaker or fuse for overload and short-circuit protection.
IMO B10R residual current devices are trusted by electrical contractors, panel builders and industrial engineers for dependable earth leakage protection and long-term reliability in commercial and industrial electrical installations.
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